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F___________
Definitions
The quality of being fiendish.
Word origin
From fiendish + -ness.
Used in a sentence
“He added, “I didn’t give enough credit to the fiendishness of the C.I.A.””
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for fiendishness yet.